5d mklll grip c---p

I have 10D with grip which looks bulky. Now i have 5D II with grip and i think the grip is not a great design. However, i want grip because i want to have shutter button on vertical and i'm more comfortable to shoot that way.

I still like the way grip built in 1Ds III. I also have film camera EOS 3 with power pack attached. I like it the best.